cmd: rksfc: add sfc u-boot command

rksfc driver with block interface

Change-Id: I395cf78e939ce9ddbd07a9afad794474f0482542
Signed-off-by: Dingqiang Lin <jon.lin@rock-chips.com>

cmd/Kconfig

@@ -898,6 +898,13 @@ config CMD_RKNAND
 	help
 	  Rockchip NAND FLASH device support
 
+config CMD_RKSFC
+	bool "rksfc"
+	depends on (RKSFC_NOR || RKSFC_NAND)
+	default y if (RKSFC_NOR || RKSFC_NAND)
+	help
+	  Rockchip SFC device support
+
 config CMD_SATA
 	bool "sata - Access SATA subsystem"
 	select SATA

cmd/Makefile

@@ -115,6 +115,7 @@ obj-$(CONFIG_CMD_SATA) += sata.o
 obj-$(CONFIG_CMD_NVME) += nvme.o
 obj-$(CONFIG_CMD_ROCKUSB) += rockusb.o
 obj-$(CONFIG_CMD_RKNAND) += rknand.o
+obj-$(CONFIG_CMD_RKSFC) += rksfc.o
 obj-$(CONFIG_CMD_SF) += sf.o
 obj-$(CONFIG_CMD_SCSI) += scsi.o disk.o
 obj-$(CONFIG_CMD_SHA1SUM) += sha1sum.o

cmd/rksfc.c

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2018 Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <rksfc.h>
+
+static int rksfc_curr_dev;
+static int do_rksfc(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	int ret;
+
+	if (argc == 2) {
+		if (strncmp(argv[1], "scan", 4) == 0) {
+			ret = rksfc_scan_namespace();
+			if (ret)
+				return CMD_RET_FAILURE;
+
+			return ret;
+		}
+	}
+
+	return blk_common_cmd(argc, argv, IF_TYPE_RKSFC, &rksfc_curr_dev);
+}
+
+U_BOOT_CMD(
+	rksfc, 8, 1, do_rksfc,
+	"rockchip sfc sub-system",
+	"scan - scan Sfc devices\n"
+	"rksfc info - show all available Sfc devices\n"
+	"rksfc device [dev] - show or set current Sfc device\n"
+	"rksfc part [dev] - print partition table of one or all Sfc devices\n"
+	"rksfc read addr blk# cnt - read `cnt' blocks starting at block\n"
+	"     `blk#' to memory address `addr'\n"
+	"rksfc write addr blk# cnt - write `cnt' blocks starting at block\n"
+	"     `blk#' from memory address `addr'"
+);

doc/README.rksfc

@@ -0,0 +1,29 @@
+rksfc (Rockchip SPI FLASH SFC drivers)
+=====================================================
+
+Overview
+--------
+
+The rksfc is used for Rockchip Soc sfc devices with
+block interface.
+
+Status
+------
+It supprot SFC SPI NOR.
+
+Usage in U-Boot
+---------------
+
+To list all of the rksfc hard disks, try:
+
+  => rksfc info
+  Device 0: Vendor: 0x0308 Rev: V1.00 Prod: rksfc
+	    Type: Hard Disk
+	    Capacity: 32.0 MB = 0.0 GB (65600 x 512)
+
+To find and initialize sfc devices, try:
+  => rksfc dev 0
+  Device 0: Vendor: 0x0308 Rev: V1.00 Prod: rksfc
+	    Type: Hard Disk
+	    Capacity: 32.0 MB = 0.0 GB (65600 x 512)
+... is now current device

include/rksfc.h

@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2018 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __RKSFC_H__
+#define __RKSFC_H__
+/**
+ * rksfc_scan_namespace - scan all namespaces attached to RK SFC
+ * controllers
+ *
+ * This probes all registered RK SFC uclass device drivers in the
+ * system,and tries to find all namespaces attached to the RK SFC
+ * controllers.
+ *
+ * @return:	0 on success, -ve on error
+ */
+int rksfc_scan_namespace(void);
+#endif